def test_execute_void_no_parameters(self):
from VM import VM
vm = VM()
m = Method()
m.name = 'TestMethod'
m.returnType = Types.Void
m.parameters = []
vm.methods.append(m)
self.assertEqual(vm.current_method(), None)
vm.execute_method(m)
self.assertEqual(vm.current_method(), m)
r = Ret()
r.execute(vm)
self.assertEqual(vm.current_method(), None)
def test_execute_void_no_parameters(self):
from VM import VM
vm = VM()
m = Method()
m.name = 'TestMethod'
m.returnType = Types.Void
m.parameters = []
vm.methods.append(m)
self.assertEqual(vm.current_method(), None)
vm.execute_method(m)
self.assertEqual(vm.current_method(), m)
r = Ret()
r.execute(vm)
self.assertEqual(vm.current_method(), None)
def test_execute_instance_clears_stack_with_void_return_type(self):
from VM import VM
vm = VM()
m = Method()
m.name = 'TestMethod'
m.attributes.append(MethodDefinition.AttributeTypes['instance'])
m.returnType = Types.Void
m.maxStack = 99
m.parameters = []
vm.methods.append(m)
vm.stack.push(111)
vm.execute_method(m)
vm.stack.push(124)
vm.stack.push(987)
r = Ret()
r.execute(vm)
self.assertEqual(vm.current_method(), None)
self.assertEqual(vm.stack.count(), 1)
self.assertEqual(vm.stack.pop(), 111)
def test_execute_instance_clears_stack_with_void_return_type(self):
from VM import VM
vm = VM()
m = Method()
m.name = 'TestMethod'
m.attributes.append(MethodDefinition.AttributeTypes['instance'])
m.returnType = Types.Void
m.maxStack = 99
m.parameters = []
vm.methods.append(m)
vm.stack.push(111)
vm.execute_method(m)
vm.stack.push(124)
vm.stack.push(987)
r = Ret()
r.execute(vm)
self.assertEqual(vm.current_method(), None)
self.assertEqual(vm.stack.count(), 1)
self.assertEqual(vm.stack.pop(), 111)
def test_execute_int_no_parameters_returns_value_on_stack(self):
from VM import VM
vm = VM()
m = Method()
m.name = 'TestMethod'
m.returnType = Types.Int32
m.parameters = []
vm.methods.append(m)
v = Variable(888)
self.assertEqual(vm.current_method(), None)
self.assertEqual(vm.stack.get_frame_count(), 0)
vm.execute_method(m)
vm.stack.push(v)
self.assertEqual(vm.current_method(), m)
# fixme - test return value too
r = Ret()
r.execute(vm)
self.assertEqual(vm.current_method(), None)
self.assertEqual(vm.stack.get_frame_count(), 1)
self.assertEqual(vm.stack.pop(), v)
def test_execute_int_no_parameters_returns_value_on_stack(self):
from VM import VM
vm = VM()
m = Method()
m.name = 'TestMethod'
m.returnType = Types.Int32
m.parameters = []
vm.methods.append(m)
v = Variable(888)
self.assertEqual(vm.current_method(), None)
self.assertEqual(vm.stack.get_frame_count(), 0)
vm.execute_method(m)
vm.stack.push(v)
self.assertEqual(vm.current_method(), m)
# fixme - test return value too
r = Ret()
r.execute(vm)
self.assertEqual(vm.current_method(), None)
self.assertEqual(vm.stack.get_frame_count(), 1)
self.assertEqual(vm.stack.pop(), v)
